China Manufacturer Stainless Steel Double Torsion Spring

• Function: Drive
• Material: Steel
• Usage: Industrial, Auto, Furniture, Motorcycle, Home Appliance
• Load Type: Extension
• Production Process: Hot Roll
• Shape: Spiral
• Model NO.: CH-S23
• Surface: Black
• Original: Jiangsu,China
• Use: Garage Door
• Quality: Good
• Transport Package: Cartons and Pallets
• Specification: CE Standard
• Trademark: CHI
• Origin: Jiangsu, China
• HS Code: 7308
• Production Capacity: 200000/Month

Product Description

Model	Extension springs
Material Type	SS302(AISI302)/ SS304(AISI304)/ SS316(AISI316)/SS301(AISI301)/SS631/65Mn(AISI1066) /60Si2Mn(HD2600)/55CrSiA(HD1550)/Music wire/C17200/C64200, Etc
Wire diameter	0.1~20 mm
I.D	>=0.4 mm
O.D	>=0.6 mm
Free length	>=3 mm
Body Length	>=0.5 mm
Total Coils	>=2
Hook Type	cross over hook, extended hooks, machine hooks, side hooks
Hook Length	>=1
Tolerance	>=0.05 mm
Packaging	PE bags, Cartons, Pallets
Warranty period	One year
Application	Electronic producats, Children toys, Baby carriage, Bicycle,  Kitchen  appliances, Cameras,  Printers, Office equipment,  Precision  equipment and various kinds of vehicles
Finish	Zinc plating, Nickel plating, Anodic oxidation,Black oxided,Electrophoresis, Power coating, Gold plating, Silver plating, Tin plating, Paint,Chorme, Phosphate, Dacromet,Oil coating, Copper plating, Sand blasting, Passivation, Polishing,Etc
Notes	1. Please offer us your spring spec,we can make spring based on  your requirements.
	2. Discount offered if with large order quantity.

Introduction

CHI Hardware CORP LTD is located in China, and is a professional exporter of garage door, industrial door and accessories. It is a rapidly growing company.Specialized in producing garage door, industrial door, rolling shutter,spring,hardware,seal strip, window ect.

Our product are exported mainly to Europe, Americal,UAE,South Africa. We has developed very quickly for its continuous products innovation,wide products range,very competitive price, on-time deliveries,extensive marketing and strong techincal support.

Exhibition:

Packing And Delivery


FAQ:
Q 1. What's the payment term? 
A. We accept TT,30% deposit and 70% balance against copy of B/L

Q 2. How's the delivery time ? 
A.  It will take 10-25 days for 20ft container

Q 3. Tell me the standard of package? 
A. Normally are cartons,we can also packing as your request.
 

Q 4. Does sample free?
A. Sample usually is free if amount is not too much,only afford the freight.

Q 5. Would you accept to make mold as our request
A. Yes,we do and mold cost can be return when you reach the enough quantity

Q 6.How long are you in this industry?
A. We have in the stamping industry about 30years and have more than 10 years experiences in the hardware for garage door

Q 7. Where is your market? 
A. Our products are popular in Russia,Poland,Croatia,Bosnia and Herzegovina,South Africa,Austrilia, NewZealand,USA, Brazil and so on.